1、，A, ecosystem temperament1, eat sexThe food of Mao is the plankton of few growth in water.Its gill rake is high and the cloth row is tight, but dont have bone substance bridge, there is also no Shai film, hence filtering water function is quicker, filter to gather to float the ability of visiting th
2、e plant bigger.Mainly resulting in of the food is of an insect, shell animal Cape, also the Han is all various Zaos.See from the amount of individuals, Zao is often more than plant food.But descend to see from the physical volume, the animality food still has a main factor.Absorb total from the Mao
3、general see, it is a kind of the interest dont shoot alimental category, the growth seasonal changes in plankton inside, as long as mouth not interest Zhang Bi, food not the interest ground enter to import a chamber with water.The characteristic may also see from the food, it is a kind of in the low
4、er type.The bowel tube of the Mao length is usually 5 times dominations that the body grows.2, grow upThe growth speed that the Mao fish body in Yangtze River grows is quicker than Pearl River, announcement is although Pearl River proper expects to take for many 2 months than Yangtze River,the well-
5、balanced biomass of planktons showing Zhao is less than Yangtze River.But apply fertilizer in the artificial of pond, the growth circumstance of Mao fish, the living creature appearance that anticipate according to the bait in the color of the sky and water of everyplace then but have a bigger margi
6、n.3, breedUnder the natural premise, the Mao fish is similar to other fish in the house, its sex gland can develop in quiet water, but ovum blunt weak demand river river water ecosystem conditions, such as circumstance and water level whereabouts.etc.In the stem of Yangtze River and in the subsidiar
7、y current, annually the end of April is to the beginning of July, when rain lax main current to result in water levels declining inside the river valley, the water temperature attain 18 , close fish at trace to flow neutral gland of progress hemp the benefit is immature, is turned into V by the IV p
8、eriod to expect to namely go to make egg and conceive, the fish egg with the current flows to send forth to teach after conceiving and hatch from eggs into fish fry.Visit according to the search, Mao fish immature age, the Pearl River river valley is 3-4 years, river valley in Yangtze River is 4-5 y
9、ears.The bosom egg of Mao fish measures a little bit greatly, mature coefficient the great majority order about in 20%, the opposite bosom egg measures at 110-160 grains of/of g weight, the opposite bosom egg measures along with the growth of weight but promotes and becomes a positive relation.Two,
10、the artificial multiply greatly1, the close fish chooseNo matter farming or grow naturally of Mao fish, as long as arriving sex immature year Chi, big separately, grow up good dont harm a disease, all can be a close fish.The male fish is negative the good luck of for having a few fins is each in the
11、 pectoral fin living to have knife of Feng, by hand order about to caress, have the felling to touch on the bluntness edge of knife;The belly is smaller, sex kid Zhi of individual, lightly press to grow bore to have a milk the white the semen run off.This fish pectoral fin is smooth.The pond keeps a
12、 childhood years age of the kid of Mao fish south the north is everywhere differ rather ，big, its weight is also more entirely different, initial is a factors, such as the color of the sky and nutrient.etc. to decide, other, male fish the more female fish is precocious year.The our country pond keep
13、s kid childhood years Ji of Mao fish and weight BE:China southern district, 2-3 ages, the 5 kgs orders about;Periphery in China, 4-5 ages, the 7 kg is or so;Northeast region, 6-7 ages, 10,000 grams of or so.2, the close fish cultivate(1)the close fish cultivate pond.Want near headwaters, good fluid
14、matter, line up to infuse convenience, spacious and facing the sun, transportation convenience;The area 0.2-0.3 hms 2, the rectangular benefit then operate, water the deep 2.5 m is or so, pond bottom flat, with Rang soil also some silts is good.Put to keep close have to develop routine before the fi
15、sh whole pure with disinfect.(2)put to keep density.Each time 1/15 hm 2 can put to keep 10-20 tails.(each tail weighs 10-15,000 grams)Another foppery clothing grass carp the close fish is 2-4 tails, each time 1/15 hm 2 put to keep a total amount(search out to go together with to keep fish) with 150-
16、200,000 grams of for degree.Bisexual proportion is 1:1.5 is good.(3)the close fish cultivate.The close fish puts before keeping, should first Shi Hao Ji is fatty, after putting to keep, concretely in sequence make track for according to season and pond fatty.Is similar usually each 1/15 the hms are
17、2750-1000 kgses, in winter or fitting add some powder Jings before producing of animal feed.(each tail year throws Jing to anticipate a 20 kg or so)3, the close fish urge a manufacturing(1)the close fish choose do not:The female fish belly compares Peng big, grow bore on all sides withered Ji, softn
18、ess, slightly have flexibility, grow bore deadly pale, the Yang turns over belly ability concealed see help a bone, too Gao end of the tail, the may be seen indistinctly ovary external appearance moves forward.But if the female fish belly is greatly partial to arouse Peng, flexibility disappear then
19、 importance put in the clean pond or the tiny flowing water pond progress again to urge to create after several days.The male fish can extrude into water namely loose of milk white semen, can choose.(2)the Pin Be male to go together with a set:The natural creation egg conceives, Pin male proportion
20、is 1:1-1:1.5;Accept a house to keep to conceive male fish is less than female fish, the semen of one tail male fish can be provided as the female fish of 2-3 tail same sizes to conceive.4, be in heat with wild teach JingThe water temperature all can urge feeling in above 18 , the best water temperat
21、ure is 2226 .Urge a manufacturing to inject 12 times, once inject is to all calculate an infusion fish body, it is a first time(had better hang a body or hang body and hormone to assimilate) to inject to all measure 1/10-1/6 to twice inject, above after 5 h, inject amount of remaining for the second
22、 time.Every time injects, the medicine liquid takes 2 mls as proper.Under the influence of the outside source hormone, the close fishs occurrence becomes angry to win feedback and be suffused with is excited but chase each other since the Pin male fish of be in heat prospects, the Pin male fish even
23、 twists while being to be in heat to arrive a fever at common, cold Zhan pectoral fin, development ovulate, shoot Jing.Collect the way of fertilizied egg:Before being in heat 1-2 hour origins ，blunt water stimulate, the fertilizied egg also gets into to gather an egg box under the concussion of flow
24、ing water in a row, literally can start to get to count to put if hatch from eggs to hatch from eggs inside the machine.5, hatch from eggsIt is to put the fertilizied egg into to hatch from eggs inside the tool to is wild to hatch from eggs, attempt a premise in the artificial bottom to hatch a fish
25、 fry.Water of any river river lake and pond embankment can used for hatching from eggs.After the sodium sulfate treatment that wasnt intentional to also use to once insolate chlorine gas or use sulphur generation think safely of tap water.Hatching from eggs the water temperature have to opposite per
26、tinacity, the Dian end filters pond or percolation Zha to carry on x-rated(40 eyes, 60 eyes, 80 eyes) pursue class of percolation.Hatching from eggs the tool has already hatched from eggs a box, hatch from eggs a bucket, hatch from eggs an urn, hatch from eggs a wreath way and hatch from eggs slot a
27、nd plastics to hatch from eggs a machine, the important cause ground system properly choice.Hatch from eggs time because of water temperature but difference.After hatching for 35 days, fish fry Biao already Chong spirit, the yolk bag basis disappears, can stop talking automatically absorb, can seedl
28、ing.Through tieup a box to temporary keep a discipline, make fish fry firm, the reduction secretes.The on the way changes water or arrives policy secretly pond, the water temperature discrepancy can not cross over 4 .Three, the seedling kind cultivate and transport1, cultivate(1)garden pond premiseT
29、he Mao fish fry kind cultivates pond area with the 1/15-1/15 hms 2, pond deep 1.5 meterses order about;The pond dike is firm not leaking;Pond bottom the even exhibition silt is excessive, have no water grass cluster to living;Fish pond dynasty sun, sunlight flighty.Besides put have to pass by before
30、 keeping whole pure.(2)the fish fry put to keep density:1/5 hms are 280,000-120,000 tails each time.(3)the fish kind put to keep:When body grew 30-60 younger sisters, accept more list to keep, its density acts according to pond size, deep water, width of figure to decide.The fish kind mixs to keep s
31、imilar common take 2-3 kinds as good, at most 45 kind, herein a kind of is corpus fish.While feeding to keep Mao fish to grow should be careful dont doll up to eat sex close by silver carp fish.(4)the hurl bait technique means and hurl bait measureThe fish kind cultivates inside the period, assists
32、to throw wild animal feed and goes into before the winter ten thousand tails to throw in peanut Fu or the rice chaff 1 kg domination every day each time;The weather after becoming cold applies fertilizer to reduce, but the peanut Fu, and rice chaff.etc. throw in quantity to need to just a little inc
33、rease and make fish kind the heap gather fat more winter.2, transport(1)apply for:The fluid matter is refreshing, contain amount of oxygen Gao, the fish body Kang Jian, the density suits and monopolizes light Jie.(2)way:Carry on the shoulder, conveyances such as vehicle, boats and ships and airplane
34、 etc. tool, prosperous the tool carrying has bamboo basket, wooden pail, canvas and nylon bag etc.Four, become a fish farmingThe choice of pondThe soil quality is Rang soil, clay or sand Rang soil, protect water efficiency to like.The pond specification is a 0.3-0.666 has, the pond ，form rectangle t
35、ype, the long breadth compares 5:3, the device head for.There is river, well water headwaters, the fluid matter has no infection.The pond establishes a material decoration to enter drain to equip.Pond water water is deep 2.5 ms.The manufacturing measures1, put to keep fish to grow specification, put
36、 to keep quantity, become fish specification and amount of manufacturingThe fish grows specification(g) to put to keep quantity(tail) to doll up category to become fish specification(g) to create quantity(1000 gram)Silver carp MaoProject 1500100010050500500Project 2100100010050750750Project 31501000
37、10050100010002, become to live to lead above 95%.The handicraft requests1, the fluid matter cultivate(1) have no color degree 20-25 cms(2) Shi Ji Fei, the acre persons excrement and urine or chicken muck after fermenting is 200-500 kilograms, or the Jiu is fatty 500-1000 kgs.(3) Shi Zhui Fei, see wa
38、ter apply fertilizer and be have no when the color degree is bigger than a 25 cms acre organic fatty 10-50 kgs, or have no machine the fatty urea(nitrogen fertilizer) is 2.5 kilograms, Lin fatty 1 kg, have no machine fatty with have no machine fatty can replace an use.(4) adjust to cure fluid matter
39、 for every 10 days once, note displacement 20-30 cms.2, the fish grow a choice and apply for physical endowment robust, have no harm, have no disease, specification clean and neat.(1) put to keep date, is divided into in spring or put to keep in spring.(2) disinfect, the fish grows into before the p
40、ond, using 10 s 10-6 malachites is green or(1020) 10-6 high potassium manganate aqueous solution medicines bathe for 10-20 minutes.(3) the fish grow into the front and back of the pond, the water temperature is bad to cross over 33, the pond disinfect, Shi Ji Fei front, take water to disinfect a 150
41、 mgs/acre with the calcium oxide, do pond to disinfect a 75 mgs/acre.4, every 5 acres of surfaces go together with 1.5 kilowatts to increase oxygen machine one set, the reasonable exploitation increases oxygen machine and switches on index sign to settle to fuse the oxygen as 4 mgs/L.Four, feed plan
42、ning1, establish a garden pond farming file.2, the maintenance cruise the pond track system and check to copy pond to have breakage, the fluid matter has already had no change, and the fish contains the weather to dont float a head and saves while creating a topic actually.Search check to have have
43、no dead fish, create to die fish, right away get, and look into cause of death, adopt prevention and cure to pass a time.3, according to the date recuperate fluid matter, promise a fish peace and health growth.4, reasonable the exploitation increase oxygen machine, good open sky noon, the cloudy day opens before down, the evening doesnt open and open before floating a head and connect brocade the overcast and rainy open at noon, fish mainly grows up the maintenance in seasonal changes to open every day.(This text has already been browsed a time)
